Hose coupling and nozzle connection



Aug. 5, 1929. s A ERWIN 1,723,273

HOSE COUPLING AND NOZZLE CONNECTION Filed Nov. 3, 1926 Try 2 /o I lo INI/EN TOR. SHANNON A. ERw//v A T TORNE Y.

Patented Aug. 6, 1929.

UNITED STATES k1,723,273 PATENT oFFicr..

SHANNON ALFRED ERWIN, OF SANTA Fit'i SPRINGS, CALIFORNIA, ASSIGNOR OF ONE-HALF T EAR-L B. WIGGINS, OF LOS ANGELES, CALIFORNIA.

HOSE COUPLING AND NOZZLE CONNECTION.

yApplicant ined Nevember 3, 192s. sei-iai No. 145,957.

rlhis` invention relates to a novel form ot coupling tor vflexible hosis, and hose nozzle connections.

A general object ol the invention is to provide a hose coupling device which' may be quickly and easily applied to hoses to couple two lengths together, or fori'connecting hose nozzles without employing hose clamps, screws, nipples, or other securing or 'l0 fastening means now in common use.

A 'further object is to provide a device in which the hose coupling or nozzle member is held in rigid engagement with the hose to which applied solely bygtriction.

parent trom the' following specilication, relference being had to the drawings accompanying the same and forming a part thereot, in which:

F i g. 'l a side elevation ola pair ot hoses coupled together, partly in section.

Fig. 2 is a longitudinal section through the hose coupling showing a hose secured to one end, the other end with the hose re- '5 moved.

Fig. 3 is an enlarged longitudinal section ot' one end oi' the coupling showing the hose trictionally clamped thereto.

Fig. l is a cross section taken on line 4-4 et Fig. 3.

Fig. 5 is a longitudinal section through a hose nozzle connection, showing another torni ot clamping ring.

Fig. G is a tace view of 5 ing rings.

In a practical embodiment of the coupling device 5 designates a tubular metal coupling member provided with a central hub or abutment G, the exterior' surface on either side being ijn-oviiled with a plurality oit' annular cone shaped serrations 7 ytapering from their bases 8 inwardly towards the central hub 6 the reverse ot similar hose connections now in general use. Encircling each serration are :friction rings l0, each provided with an inclined split l1 in order that the same may be mounted in position on the conical surfaces of the serrations. These rings are one ot the clamppreferably formed of spring metal, and ot.

Other objects and advantages will be ap.

freedom of movement on the conical surbases S the outer peripheral ksurfaces lying .flush with the edges 12 of the serrations. After the member 5 has been inserted in the hose 13 a short metal sleeve 14 mounted on the hose is drawn forwardly against the abutment (S, the internal diameter o'l" the sleeve being slightly greater than the external diameter ot the hose in order that the sleeve will at all times be in trictional sliding engagement therewith.

After the sleeve 14 has been drawn into position, as shown in Figs. l and 2, it will be apparent that when an outward pull is exerted on either ot the hoses whichare coupled together that the conical surfaces of the sei-rations ot the members will cause a wedging action of the spring 'friction rings in the spaces Yformed between the conical surfaces of the serrations and the inner surt'aces oit' the hoses, the metal sleeve serving to prevent a deformation of the hose walls,

Fig. 43 illustrating graphically the actionk above described.

In Fig. 5 is illustrated the end ot a hose provided with a single coupling member 5, provided at its hub end 6 with a threaded nipple 15 il'or the reception ot' a hose sprinkler nozzle. The construction and action of the coupling being exactly similarto the first described form.

From the above it will be apparent that `I have provided a device, a simple highly ellicient coupling device that eliminates the use of clamps, springs, and similar mechanisms, the coupling being held in Jfrictionally tight engagement with the rhose at all times until the metal sleeve is moved out ot its operative position.

What I claim is:

l. A coupling oi the character specified comprising in combination with an elastic hose, a hose engaging member having a plurality of conical external serrations, a

n split metal friction ring encircling each Seryration and movable thereon, and a metal sleeve movably mounted on the hose and surrounding the khose engaging member,

Wliereby when a pull is exerted on the hose engaging member' the friction rings will Wedge in the s mees between the conical surfaces of the Serrations und the elastic hose Wall to hold tbe liose in rictional engagement with the bose member.

2. A coupling` of the character specied comprising in combination with a bose, a liese engaging member having' a, yplurality Ot conical surfaces, a metal Wedging means movzibly mounted on each of Suid surfaces, and e sleeve slidztbly mounted on the hose and encircling that portion engaged by the bose engaging member.

3. A hose Coupling Construction comprising'in combination with a hose, a tubular coupling member adapted to engage one end of the hose7 the peripheral surface of said member being provided With L plurality of cone-shaped surfaces, the surfaces tapering from the forward end of Seid member rearwardly and outwardly, a plurality of movable Wedging members7 one 'for each Cone shaped surface, and e movable sleeve member mounted on the hose and surrounding the coupling member.

ln Witness that l claim the foregoing' I have hereunto subscribed my name this 28th day of September, 1926.

SHANNUN ALFRED ERYVIN. 

